Automotive Air Conditioning Information Forum (Archives)

kev2 on Fri August 12, 2011 5:24 PM

Year: 2003
Make: merc
Model: sabel
Ambient Temp: 85
Pressure High: 80

Where O where is the LOW side connector for my gauges? High side easy up front cannot locate the low connector..... any help

GM Tech on Fri August 12, 2011 5:57 PM

On Ford fusions they are under front fender in front of right front wheel---on accumulator-- this may be a related car..

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

JJM on Fri August 12, 2011 9:40 PM

I think GM Tech has it pretty much about right, if I remember corretly it's all the way down underneath all the reservior assemblies on the right hand side. Suction port is part of the accumulator and hose assembly... and that's not fun to replace either. Had to pull the dog bone mount, brackets, all the friggen reserviors (then had to bleed to cooling and power sterring system), only to find that the damn spring locks were corroded frozen. Had to cut the damn thing out.

I'm sure you guys have lots of fun getting to anything near the firewall with engine and manifold jammed up against it. I can remember a day when there was practically enough room under the hood of a Mercury to sit next to the engine.

Joe

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